Gas street-light extinguisher.



PATENTED MAR. 31, i908.

S. WELLS. GAS STREET LIGHT EXTINGUISEER.

APPLICATION FILED JULY 5, 1907.

WIT/158858.'

the upper ortion of which-.fthe gas tube 2 UNITED STATES vparlarmi oFFISE.

STERLING WELLS, OF SCHALLER, IOIW.

GAS STREET-LIGHT Ex'rmeursimrt.

naaaaaez.

Specification of Letters Patent. l Patented March 31,1968.

Application Bled July 5, 1907. Serial No. 382,337.

To all whom 'it may concern: i

Be ity known that I, STERLING WELLS, residing at Schauer, in the county of Sac and State of lowa, have invented a new and lmproved Gas-St'feet-Light lExtinguisher, of

. which the following is a'speciiication.

yMy invention relates to certain new and useful improvements 1n automatic extin- 1 guishers-for gas burners', and it particularly ,fbodies' a valve mechanism connected with the burner stop-cock arid the gas supply pipe,

relates to an improved a paratus for extinguishing simultaneousl t iegas at a plurality of street lamps Witlliout extinguishing or cuttinglout the supply of gas to private consumers.. y In its generic nature the invention em# which-valve mechanism includes a pressure .controlled valve and a weighted member for1 normally holding such valve closed.

ln its more detail nature the invention embodies certain novel features of construction,

combination and arrangement of parts, all of which be first described in detail, and then be specially ointed out in the appended claims, reference eing. had to the accompanying drawings, which:

I ao

Figure 1, isa erspectiveview of my invention applied or use, the lamp globe and burner being removed. Fig. 2, 1s a central, vertical longitudinal section thereof showing the position of the parts when the gas is {iowing through the burner cock while the lamp is lighted. Fig. 3, is a similar view showing the position of the parts after the automatic valve-has been4 closed. Fig. 4, isa horizontal section on the line 4 4 of Fig. 2, looking in the direction of the arrow a. Fig. 5, is a section on the line 5-5 of Fig. 2, looking in the direction of the arrow b. y

Referring now to the accompanying drawings in which like letters and numerals of g reference indicate like parts in all of the ligures 1' designates the lamp-post, which may be of any approvedl construction, an'd from projects. he tube 2 'is internally screw I threaded at 2L for a purpose presently to be explained. 0.

3 designates the globe supporting base which has a hub 3 secured to the pipe bya 1 -setscrew 3", as shown.

x ',4'designates my im rovedfautomatic cutoff; and valve control ing mechanism which comprises a casing 4 inclsing a gas cham-V is secured to the diaphragm by a plate 7 andA .i'oined at 11a to a lever 11 that is h quite.

nuts 7 a, as shown, to 4eilect a gas-tight joint. Theshaft 6 passes through an aperture 4X in the lid 4C, which aperture is made suiliciently large to permit access of vair in the space between the diaphragm 5 and the lid 4.

8 designates a pipe section or nipple which has a threaded portion 8a to screw into the threaded portion 2a of the pipe section 2, and which at its lower end has a valve Seat 8b that communicates with the central bore or passage 8 of the pipe section 8. A valve 9 of the ball type which is mounted on a valve stem 10, is adapted to close the bore 8C of the pipe section SiL when seated upon thefseat 8b in a mannerpresently explainels'o.l

The valve stem or rod 10 is pivotallyl e d in the orizontal passage 45 that communicates between the bore 8c and the chamber 4b.

'The lever- 11 is fulcrumed at ,1 1b and near its end is pivoted at 11c to 3the shaft 6, so that as the shatt 6 is moved longitudinally the lever 11 will be rocked to open or close the valve 9, as the case may be. A 12 designates the gas cock which may be of any approved type and this cock 12 has a threaded portion 12a to screw into a Socket 4C in 'the casing 4a"" with the bore or passage 12b of the cock registering with the passage lRas indicated.

The cock 12 includes the usual finger operated valve member 12C andfthe threaded portion 12d to receive` the burner;`. (not shown)f Secured to .the shaft is a receptacle 13 having a removable lid 13al and which is adapted to receive suitable weights 14 such as shot, for instance, so that the total weight ofthe receptacle 13 and its contents may be varied as conditions may re- In the practical a plication of my inven-4 tion, the device is p aced on each gas-post,y by removing the gas-cock and placing the attachmentbetween the' gas-cock and the gas-post as indicated in the drawings,.thus

allowing the gas to pass through my'api paratus to the burner to be lighted.

The contents of the box or receptacle 13 is I varied and adjusted according to the presvio sure of gas used .in the system and the weight is so adjusted as to be sufficiently light to be held up' when the pressure of the gas is normal (see Fig. 2'), which normal pressure may be four, iive, .siX or more ounces, 'as may be found desirable.

The weighted receptacle 13 is mounted on the shaft 6, which in turn connects with-the lever 11 and throughthe lever 11 is operatively conor gas pipes all over the system. As soon as this occurs, the weight carried by the shaft 6 will result in rocking the lever 11 into the position shown in Fig. 3, to close the valve 9. vThe gas pressure is then again brought up to its normal amount, and inasmuch as -the valve 9 is closed, the gas pressureitself aids in maintaining the valve closed and prevents the escape of gas through the burner, it 'being understood that the cock 12 normally has its valve 12C always open. When it is desired to re-light the lamps, the lighter simply raises the casing 13 to open the valve 9 and then ignites the gas at the burner in the .usual manual manner.l The gas supply to the burner may be regulated by the cock 12 in the usual way.

I From the foregoing description taken in connection with the accompanying drawings, it is thought the complete construction, operation and many advantages ofmy invention will be readily understood by those skilled in the art to which the invention appertains.

What I claim is;

1. An apparatus of the class described, comprising in combination with the lamp gas supply pipe., a casing having a nipple threaded into said supply pipe and provided with a gas passage and a valve seat, a valve vfor cooperating with said valve seat, a valve stem projecting into said gas passage of the nipple, a lever fulcrumed in said casing and connected with said valve stem, means controlled by gas pressure and connected with said lever for maintaining the valve open while gas is' passing through under normal pressure, means for rocking said lever to close saidvalve when the gas pressure falls below a predetermined amount, saidlgcasing havingan outlet aperture and a threaded' cock receiving portion merging therewith,

and a stop-cock connected in said cock rej ceiving portion.

2. The combination with the gas supply vices for said gas passage of the nipple,

means for normally holding said'valve open by gas pressure, and means for closing said valve when the gas pressure dro s below .a predetermined amount, a stop-coc mounted in said casing at the outlet passage thereof, all being arranged as shown and''described'.

3. Inan apparatus of the-class described, a casing having a gas chamber and a gas passage in communication therewith, a nipple projecting :from said casing'at the gas passagev and having a bore in communication with said gas passage, said casing having an internally threaded cockreceiving portion in communication with said gas passage, an in let valve to said casing, means for holding*l said inlet valve normally open, and means for closing said inlet valve when the gas pres- ,sure drops below a predetermined amount.

4. In an apparatus of the class described, a casing having agas chamber and a gas passage in communication therewith, a nipple projecting from said casing at th'e gas passage 'and having a bore in communication with saidgas passage, said casing having an internally threaded cock receiving 'portion Yin communication with said gas passage, an inlet valve. to said casing, means for holding said.- inlet valve normally open, means for, closing said inlet valve when the gas pressure drops below a predetermined amount, said last named means comprising a weighted member, a -lever fulcrumed within the casing and connected with said weighted member and said valve, substantially as shown and described.

5. In an apparatus of the class described, a casing having a gas chamber and a gas passage in communication therewith, a nipple projecting from'saidhcasing adjacent the gas passage thereof, and having a bore in communication with said gas passage, y'said casingv having a cock receiving portion in communi cation with said gas passage, said nipple having a vvalve Iseat at its entrant end, an inlet valve cooperating with said valve seat and having a stem projecting through said nipple, a lever fulcrumed in said casing and 'projecting through the gas assage thereof and connected with said vval)ve stem, means coperating with-the lever for holdingthe inlet valve normally open, and means coperatin with .j

saidlast named means for closing sai inlet-Y isio valve When the gas pressure drops below a predetermined amount, substantially as shown and described.

6. ln an apparatus of the class described,

5 a easing having a gas chamber, a gas inlet to said casing, said easing having a gas passage between the inlet and the gas chamber, and

having a gas outlet7 said gas inlet having a said gas inlet, alever fulerumed in said easing', andpivotally connected with said valve stem, a diaphragm Carried by said casing in `said gas chamber, a shaft said diaphragm and connected with said le connected with ver, a receptacle mounted on said shaft, said rece )taele adapted to receive eounterweights, all being arranged to hold the valve nor nally open and to close the saine when the gas pressure drops below a predetermined amount, substantially as shown and described.

STERLING WELLS. Witnesses:

A. J. MARTIN, C. qW. M. BINEHALL. 

